Home / 299,724.09-413,614.40-163,755.11

Finding the Fourth Proportional to 299,724.09, 413,614.40 and 163,755.11

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Solution

The fourth proportional to 299,724.09, 413,614.40 and 163,755.11 is: 225,979.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,724.09 : 413,614.40 = 163,755.11 : x
  2. Step 2: Convert to fraction form
    299,724.09/413,614.40 = 163,755.11/x
  3. Step 3: Cross multiply
    299,724.09x = 413,614.40 × 163,755.11
  4. Step 4: Simplify right side
    299,724.09x = 67,731,471,569.58
  5. Step 5: Solve for x
    x = 67,731,471,569.58/299,724.09
  6. Step 6: Final answer
    x = 225,979.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.